Protein Standards and Ladders Products & Reviews

The SeeBlue Plus2 Pre-Stained Standard allows you to easily visualize protein molecular weight ranges during electrophoresis and quickly evaluate Western transfer efficiency.

PageRuler Plus Prestained Protein Ladder is a mixture of nine (9) blue-, orange- and green-stained proteins for use as size standards in protein electrophoresis (SDS-PAGE) and Western blotting.

Odyssey One-Color Protein Molecular Weight Markers fluoresce in the 700nm channel of any of the Odyssey Imaging Systems and contain ten protein bands of 10, 15, 20, 25, 37, 50, 75, 100, 150, and 250 kDa, with molecular weight shifts of 5% and minimal band broadening.

Chameleon®  Pre-Stained Protein Ladders offer easy visualization of gel migration and protein size, and can be used to orient your gel or membrane quickly. These versatile protein markers offer multi-colored, pre-stained proteins for both visual inspection and two-color near-infrared detection. Choose from either single-channel or two-channel detection.

The WesternSure Protein Ladder is the only pre-stained, multi-colored protein ladder that provides chemiluminescent signal for film and digital detection. It will fit with your current protocol without optimization and does not rely on strep-tagged HRP or secondary antibody binding. The WesternSure protein ladder works with a variety of substrates and provides a vibrant color scheme that allows you to quickly orient your membr…

Chameleon Vue Pre-stained Protein Ladder offers multi-colored, pre-stained proteins for molecular weight estimation

Chameleon Duo Pre-stained Protein Ladder provides multi-colored, pre-stained bands for visual inspection and two-color near-infrared detection. It includes 11 protein bands from 8 to 260 kDa.

OxyBlot™ Protein Standard is composed of five proteins (phosphorylase B, BSA, ovalbumin, carbonic anhydrase, trypsin inhibitor) containing 1-3 dinitrophenylhydrazone (DNP) residues per protein. These attached DNP moieties permit the visualization of the proteins by the detection system of the OxyBlot™ Protein Oxidation Detection Kit. OxyBlot™ Protein Standard serves as an internal control for the electrophoresis, western trans…

Perform high sensitivity protein electrophoresis with the 2100 Bioanalyzer System. The High Sensitivity Protein 250 assay provides a broad dynamic range with sensitivity down to Silver Stain comparable levels. Efficiency is enhanced by eliminating handling of SDS-PAGE slab gels, staining or, imaging steps.

Novel protein markers for visible tracking & accurate sizing on any Western blotTrail Mix™ Western Markers consist of the Perfect Protein™ Western Markers supplemented with a group of three prestained indicator proteins to allow direct visualization of protein mobility during electrophoresis. Trail Mix Western Markers and Western Blot Kits have all of the features of Perfect Protein Western Markers and Western Blot Kits, plus…

The MagicMark XP Western Protein Standard is specifically designed for easy and convenient protein molecular weight estimation directly on Western blots.

The Novex Sharp Pre-Stained Protein Standard is designed for accurate, easy, and convenient molecular weight estimation of a wide range of molecular weight proteins during SDS-PAGE and Western blotting.

The HiMark Pre-Stained Protein Standard is designed for analysis of high molecular weight proteins on NuPAGE Tris-Acetate gels.

Spectra Multicolor Broad Range Protein Ladder is a 4-color protein standard containing 10 prestained proteins (10 to 260kDa) for use in gel electrophoresis and Western blotting.

The Mark12 Unstained Standard allows the closest estimation of molecular weight of your sample protein over a wide molecular weight range.

The NativeMark Unstained Protein Standard is a ready-to-use protein standard designed for molecular weight estimation of proteins using native gel electrophoresis.

Spectra Multicolor High Range Protein Ladder is a mixture of eight (8) blue-, green-and orange-stained proteins (40 to 300kDa) for use as size standards for high-MW proteins in gel electrophoresis and Western blotting.